blob: 68b858f5be0fb6f60dcc6291605c68fc57693891 [file] [log] [blame]
load("//bazel:macros.bzl", "exports_files_legacy")
load("@rules_cc//cc:defs.bzl", "cc_toolchain")
load(":linux_amd64_toolchain_config.bzl", "provide_linux_amd64_toolchain_config")
load(":mac_toolchain_config.bzl", "provide_mac_toolchain_config")
licenses(["notice"])
exports_files_legacy()
# https://bazel.build/docs/toolchains
# https://bazel.build/reference/be/platform#toolchain
toolchain(
name = "clang_linux_x64_toolchain",
# Where should we run this toolchain?
exec_compatible_with = [
"@platforms//os:linux",
"@platforms//cpu:x86_64",
# We do not want an extra constraint here related to the hermetic toolchain because
# we want the toolchain to run on any Linux x64 machine (and it certainly can).
],
# What can this toolchain build?
target_compatible_with = [
"@platforms//os:linux",
"@platforms//cpu:x86_64",
# We want to be able to explicitly tell Bazel to use this toolchain, and not the
# default one on a user's machine or on the RBE worker. Thus we need an extra constraint
# that we can use to differentiate the "stock" C++ toolchain from our hermetic one and
# force that use by specifying the target platform.
"//bazel/platform:use_hermetic_toolchain",
],
toolchain = ":linux_amd64_host",
# https://github.com/bazelbuild/rules_cc/blob/8bb0eb5c5ccd96b91753bb112096bb6993d16d13/cc/BUILD#L32-L36
toolchain_type = "@rules_cc//cc:toolchain_type",
)
# Our one mac toolchain can run on either Intel Macs or M1 Macs, however Bazel does not allow you to specify
# more than one cpu type in exec_compatible_with. Thus, we list the same toolchain twice.
toolchain(
name = "clang_mac_x64_toolchain",
exec_compatible_with = [
"@platforms//os:macos",
"@platforms//cpu:x86_64",
],
target_compatible_with = [
"@platforms//os:macos",
"@platforms//cpu:x86_64",
"//bazel/platform:use_hermetic_toolchain",
],
toolchain = ":mac_host",
# https://github.com/bazelbuild/rules_cc/blob/8bb0eb5c5ccd96b91753bb112096bb6993d16d13/cc/BUILD#L32-L36
toolchain_type = "@rules_cc//cc:toolchain_type",
)
toolchain(
name = "clang_mac_arm64_toolchain",
exec_compatible_with = [
"@platforms//os:macos",
"@platforms//cpu:arm64",
],
target_compatible_with = [
"@platforms//os:macos",
"@platforms//cpu:arm64",
"//bazel/platform:use_hermetic_toolchain",
],
toolchain = ":mac_host",
# https://github.com/bazelbuild/rules_cc/blob/8bb0eb5c5ccd96b91753bb112096bb6993d16d13/cc/BUILD#L32-L36
toolchain_type = "@rules_cc//cc:toolchain_type",
)
filegroup(name = "not_implemented")
filegroup(
name = "archive_linux_amd64_files",
srcs = [
"linux_trampolines/ar_trampoline_linux.sh",
"@clang_linux_amd64//:archive_files",
],
)
filegroup(
name = "compile_linux_amd64_files",
srcs = [
"linux_trampolines/IWYU_mapping.imp",
"linux_trampolines/clang_trampoline_linux.sh",
"@clang_linux_amd64//:compile_files",
],
)
filegroup(
name = "link_linux_amd64_files",
srcs = [
# Bazel assumes it is talking to Clang when linking.
"linux_trampolines/clang_trampoline_linux.sh",
"@clang_linux_amd64//:link_files",
],
)
filegroup(
name = "archive_mac_files",
srcs = [
"mac_trampolines/ar_trampoline_mac.sh",
"@clang_mac//:archive_files",
],
)
filegroup(
name = "compile_mac_files",
srcs = [
"mac_trampolines/clang_trampoline_mac.sh",
"@clang_mac//:compile_files",
],
)
filegroup(
name = "link_mac_files",
srcs = [
"mac_trampolines/clang_trampoline_mac.sh",
"@clang_mac//:link_files",
],
)
provide_linux_amd64_toolchain_config(
name = "linux_amd64_toolchain_config",
)
provide_mac_toolchain_config(
name = "mac_toolchain_config",
)
# https://bazel.build/reference/be/c-cpp#cc_toolchain
cc_toolchain(
name = "linux_amd64_host",
all_files = ":not_implemented",
ar_files = ":archive_linux_amd64_files",
compiler_files = ":compile_linux_amd64_files",
dwp_files = ":not_implemented",
linker_files = ":link_linux_amd64_files",
objcopy_files = ":not_implemented",
strip_files = ":not_implemented",
supports_param_files = False,
toolchain_config = ":linux_amd64_toolchain_config",
)
cc_toolchain(
name = "mac_host",
all_files = ":compile_mac_files", # Apparently also used to compile objc code
ar_files = ":archive_mac_files",
compiler_files = ":compile_mac_files",
dwp_files = ":not_implemented",
linker_files = ":link_mac_files",
objcopy_files = ":not_implemented",
strip_files = ":not_implemented",
supports_param_files = False,
toolchain_config = ":mac_toolchain_config",
)